import Vue from 'vue'
import VueRouter from 'vue-router'

// import Login from './components/Login.vue'
const Login = () => import( /* webpackChunkName:"login_home_welcome" */ './components/Login' )
// import Home from './components/Home'
const Home = () => import( /* webpackChunkName:"login_home_welcome" */ './components/Home' )
// import Welcome from './components/Welcome'
const Welcome = () => import( /* webpackChunkName:"login_home_welcome" */ './components/Welcome' )

// import Users from './components/user/Users'
const Users = () => import( /* webpackChunkName:"users_rights_roles" */ './components/user/Users' )
// import Rights from './components/power/Rights'
const Rights = () => import( /* webpackChunkName:"users_rights_roles" */ './components/power/Rights' )
// import Roles from './components/power/Roles'
const Roles = () => import( /* webpackChunkName:"users_rights_roles" */ './components/power/Roles' )

// import Cate from './components/goods/Cate'
const Cate = () => import( /* webpackChunkName:"cate_params" */ './components/goods/Cate' )
// import Params from './components/goods/Params'
const Params = () => import( /* webpackChunkName:"cate_params" */ './components/goods/Params' )

// import Goods from './components/goods/Goods'
const Goods = () => import( /* webpackChunkName:"goods_add" */ './components/goods/Goods' )
// import Add from './components/goods/Add'
const Add = () => import( /* webpackChunkName:"goods_add" */ './components/goods/Add' )

// import Order from './components/order/Order'
const Order = () => import( /* webpackChunkName:"order_report" */ './components/order/Order' )
// import Report from './components/report/Report'
const Report = () => import( /* webpackChunkName:"order_report" */ './components/report/Report' )

Vue.use( VueRouter )


const router = new VueRouter( {
  routes: [ {
      path: '/',
      redirect: '/login'
    },
    {
      path: '/login',
      component: Login
    },
    {
      path: '/',
      redirect: '/login'
    },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [ {
        path: '/welcome',
        component: Welcome
      }, {
        path: '/users',
        component: Users
      }, {
        path: '/rights',
        component: Rights
      }, {
        path: '/roles',
        component: Roles
      }, {
        path: '/categories',
        component: Cate
      }, {
        path: '/params',
        component: Params
      }, {
        path: '/goods',
        component: Goods
      }, {
        path: '/goods/add',
        component: Add
      }, {
        path: '/orders',
        component: Order
      }, {
        path: '/reports',
        component: Report
      } ]
    },
  ]
} )

//挂载路由导航守卫
router.beforeEach( ( to, from, next ) => {
  //to将要访问的路径
  //form从哪个路径跳转过来
  //next 是一个函数表示放行
  if ( to.path === '/login' ) return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem( 'token' )
  if ( !tokenStr ) return next( '/login' )
  return next()
} )


export default router
